baber/WOPTO huggingface dataset:
Patent GB-960791-A (GB)
Title: Improved magnetic sound record transcribing apparatus
IPC: G11B15/26
Filed: 1962-12-06
Abstract: 960,791. Editing and copying magnetic tapes; teaching languages. UNIVERSITY COURT OF THE UNIVERSITY OF EDINBURGH. Dec. 6, 1962, No. 46038/62. Headings G5G and G5R. An improvement in the teaching apparatus described in Specification 771, 104, in which successive portions of instruction on a magnetic reelto-reel tape 5 are read by a head 6<SP>1</SP> and are fed to the pupil at 28 via means 14, 29 and are recorded on one track of a loop 9 via switch A 4  so that opera tion of the switch A halts the tape 5, removes HT from an oscillator 16 feeding erase and record heads 11<SP>1</SP>, 12<SP>1</SP> and switches playback head 10<SP>1</SP> to the pupil so that the last portion of instruction may be repeated to him. A two-track drum may also be used in place of the loop 9. The loop or drum is some twice the length of the periods of instruction, which are themselves interspersed with equal length blanks on the tape 5. During the period following the repeated instruction, the pupil may use a microphone 30 to record a response to the instruction on the other track of the loop 9, which may be recorded, together with a repeat of the instruction on the lower track of the tape 5, for later assessment by the tutor. In a further embodiment (Fig. 2 not shown), the pupil may operate a further switch to monitor and/ or replace his first response before dubbing it on to the tape 5. The loop 9, with its twin tracks, but without the re-recording facility may also be applied to a gramophone record of instructions. Teaching languages. The apparatus may be used for teaching languages in that the twin-track magnetic tape 5 is a marker tape on the upper track of which a series 'of phrases in a foreign language has previously been recorded by an instructor. Each phrase should be of such duration that it may be recorded on loop 9 of a twin-track magnetic tape to take up less than half the recording time of one complete cycle of the loop. The lesson is conducted by a student sitting in front of a microphone 30 and wearing headphones 28. The tape recorder is switched on and as tape 5 winds off the phrases recorded by the instructor are re-recorded on loop 9 and fed simultaneously to the headphones. The re-recorded phrase may be repeated periodically and the student may during the periodic repetitions make a recording on the lower track of the loop in the period of silence between the end of the phrase and its repeat. Following erasure of the phrase on the lower track by an erase head 11, the phrase may be recorded one more and the student can thus practice the phrase under consideration until the phrase has been mastered satisfactorily.
Patent GB-1338858-A (GB)
Title: Writing support pad
IPC: B43L3/00
Filed: 1972-10-05
Abstract: 1338858 Desk pad GREIF-WERKE GmbH 5 Oct 1972 [20 May 1972] 46055/72 Heading B6P  A desk pad has a transparent top sheet 3, one edge of which is removable held by fastening means in a pocket 2 along one edge of the pad. The fastening means may be press-studs (Fig. 1) or heat welds 6 between opposite walls of the pocket which co-operate with complementary notches (7, Fig. 5) in the top sheet 3.
Patent GB-1270797-A (GB)
Title: Fluid operated servomechanism
Inventor: HEATH RONALD ALFRED
IPC: F15B9/02
Filed: 1968-09-30
Abstract: 1,270,797. Fluid-pressure servomotor systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 12, 1969 [Sept. 30, 1968], No.46267/68. Heading G3P. The piston 12 of a fluid-pressure servomotor system, is moved from a datum position through a displacement corresponding to a ratio P2/P4, by a circuit comprising a relay valve 17 fed by a pure fluid proportional amplifier 27, the control ports 29, 28 of which are fed respectively with pressure P2 and a pressure P4P which is derived from a control device having a fixed resistor 31 fed with pressure P4 and a variable resistor 32, controlled by a member 33 secured to piston 12. The cylinder 11 of the servomotor is vented through resistors 15, 16 to a region at pressure P 1  into which variable resistor 32 also vents. In a modification Fig. 2 (not shown) a ratio P4/P2 is obtained by feeding Fig. 2 (not shown) a ratio P4/P2 is obtained by feeding pressure P4 to the variable resistor 32 and by replacing cross connections 22, 23 with direct connection between corresponding ends of valve 17 and cylinder 11.
Patent GB-1029807-A (GB)
Title: Improvement in, and design of, controlled guards for machine tools
Inventor: BARBER ARTHUR ADAM
IPC: F16P3/14
Filed: 1963-11-23
Abstract: 1,029,807. Machinery guards. BARBER ELECTRICAL SERVICES Ltd. Aug. 17, 1964 [Nov. 23, 1963], No. 46344/63. Heading F2J. In a brake press a safety guard comprises a series of transparent spring-pressed sensors 4 arranged adjacent a press tool 2 and carried by a press bar 1, each sensor carrying an opaque signal 6 having a central hole 7 forming, with the other holes 7, a channel through which a beam of radiant energy is transmitted when the holes 7 are aligned. When one or more sensors 4 is raised with respect to the others, the beam is interrupted and causes stopping of the press. The source and receiver of the beam may be arranged in the end sensors 4 or in the frame on the machine. Electromagnetic radiation or acoustic radiation may be employed.
Patent GB-1535650-A (GB)
Title: Electronic switching device for producing a timed signal
IPC: H04M1/31
Filed: 1977-11-08
Abstract: 1535650 Subscriber apparatus INTERNATIONAL STANDARD ELECTRIC CORP 8 Nov 1977 [18 Nov 1976] 46407/77 Heading H4K A switching device for a substation for signalling call transfer to the exchange, which device is connected in series with the hook switch (H, Fig. 1, not shown) the dial switch (DS1, 2) and the receiver transmitter circuit (RE) comprises a thyristor SCR forming part of the series connection and which is normally conductive when the line loop is closed, means to turn the thyristor off, Sll, S12 and a timing circuit Cl, D5, Rl to turn the thyristor on after a predetermined time interval which is recognized by the exchange on a call transfer request. The thyristor SCR is connected to the timing circuit through a buffer stage TR1, Zl so that smaller values for Cl and Rl can be used. Capacitor Cl charges through R1 when the line is looped and through the buffer stage fires the thyristor. Diode D5 prevents the capacitor from discharging when the thyristor is conducting or when the thyristor is turned off by the dialling contacts (DS1), during dialling. To signal call transfer the thyristor is turned off by discharging capacitor Cl through switch S11, S12, and is turned on again after a predetermined time beginning from the time the line opens, i.e. when S11, S12 is released, until Cl has a high enough charge to activate transistor TR1. When the switching device is used with VFC signals, thyristor SCR remains on during signalling.
Patent GB-947997-A (GB)
Title: Improvements in or relating to force-transmitting devices
IPC: F16C1/28
Filed: 1962-12-10
Abstract: 947,997. Bowden mechanisms. M. MARTINOT. Dec. 10, 1962 [Dec. 9, 1961], No. 46501/62. Heading F2K. A flexible, movement transmitting mechanism comprises a flexible tubular sheath 1, e.g. of a plastics material, a flexible rod-like member 4 freely movable along the longitudinal axis of the sheath, guiding tracks 2 and 3 secured within the sheath, and balls 5 between the member 4 and the tracks 2 and 3, the tracks having indented or attached stop members 2a and 3a thereon to limit the longitudinal movement of the balls, and thus act as cages for the latter.
Patent GB-1451156-A (GB)
Title: Packaging for integrated circuits
IPC: H01L23/522
Filed: 1974-10-29
Abstract: 1451156 Integrated circuit assemblies INTERNATIONAL BUSINESS MACHINES CORP 29 Oct 1974 [13 Dec 1973] 46678/74 Heading H1R A support package for supporting one or more integrated circuit chips comprises (Fig. 1) a six sided solid dielectric substrate body 10 on each of whose major face planes is deposited plural metallized conductive interconnection patterns 12 and each of which may carry chips 14, 16, 18, &c. which are interconnected electrically inter se and to output pins 20 over the metallized patterns, e.g. by traverse edge conductors 22, 24, 26, 27, 28 or by angular extensions 13 of the planar metallized patterns. The patterns may be vapour deposited directly on the dielectric, or on a dielectric layer of a metal heat dissipating inner core, while the connector pins 20 may be brazed to their respective metallized patterns. The body 10 may have any convenient number of conjoined sides. In a modification (Fig. 2, not shown) plural input/output pins are provided on opposed major faces which extend through detached dielectric substrates parallel to the faces which carry further interconnection patterns, and the semiconductor chips may be bonded to their associated metallized patterns by solder reflow, thermocompression, or ultrasonic bonding. In a further modification (Fig. 3, not shown) the substrate may form an open ended cage carrying the metallized patterns, semiconductor chips, and connection pins and formed by extrusion of glass, plastic, or ceramic or by dielectric coating on an inner core of metal. A semiconductor chip may be mounted (Fig. 4, not shown), on a detached substrate carrying metallized patterns which are in turn selectively connected to the patterns of the main substrate by a metallized bond. Plural open ended hollow substrates carrying plural chips (Fig. 3, not shown) may be mounted slidably on an inner central heat dissipating or dielectric member (Fig. 5, not shown) and interconnected, e.g. by connectors, pins, or bonds and locked into position thereon, while the connections to the stack are made over plural input/output pins mounted on the end. A continuous extruded hollow substrate member carrying plural semiconductor chips may similarly be slidably engaged with the central member (Fig. 6, not shown).
Patent GB-1351657-A (GB)
Title: Treating inorganic salt solutions
Inventor: DAVIS JR J A
IPC: C02F1/00
Filed: 1971-10-11
Abstract: 1351657 Treating salt solutions MARATHON OIL CO 11 Oct 1971 [27 Nov 1970] 47266/71 Heading C1C A method of separating an aqueous inorganic salt solution (e.g. brine) into at least two fractions having respectively higher and lower concentrations than the original solution comprises (a) contacting the aqueous solution with a composition comprising a water-immiscible liquid and a surfactant to form a microemulsion top phase and a bottom phase, the bottom phase having a higher salt concentration than the original solution, (b) separating the microemulsion from the bottom phase, (c) treating the microemulsion to form at least two distinct phases and (d) recovering one of the distinct phases, the recovered phase having a lower salt concentration than the original solution. The composition may comprise a cationic, anionic, non-ionic, amphoteric, polymeric or fluorocarbon surfactant, a hydrocarbon or halogenated hydrocarbon, a cosurfactant such as an alcohol, aldehyde, ketone, ether or amine, and salt. The composition may be a micellar dispersion comprising sodium or ammonium petroleum sulphonate and kerosene. The microemulsion top phase may be separated by a process comprising centrifuging, electrostatic techniques, temperature change or pH change. The process may comprise a plurality of serially connected stages each stage performing the steps (a)-(d), the water solubility of the surfactant used in the first stage being greater than in any subsequent stage. Between each stage surfactant and cosurfactant, if used, may be removed from the lower salt content fraction by precipitation, adsorption on activated carbon or ion exchange resin or flotation and reused.
Patent GB-1221039-A (GB)
Title: Improved coupler for colour photographic emulsions
IPC: G03C7/34
Filed: 1969-09-25
Abstract: 1,221,039. Naphthoic acid amide derivative. KONISHIROKU PHOTO INDUSTRY CO. Ltd. 25 Sept., 1969 [25 Sept., 1968], No. 47368/69. Heading C2C. [Also in Division G2] The invention comprises the compound of the formula The compound is prepared by esterifying 1 - hydroxy - 4 - chloro - # - naphthoic acid with phenol and reacting the ester produced with oleylamine.
Patent GB-1406495-A (GB)
Title: Gain control apparatus
IPC: H04N9/11
Filed: 1972-10-16
Abstract: 1406495 Film scanning EASTMAN KODAK CO 16 Oct 1972 [15 Oct 1971] 47645/72 Heading H4F The vertical deflection signal R, Fig. 2, applied to a continuously moving motion picture film flying spot scanner is produced in response to signals derived from the detected film perforations which occur at the frame rate of the film, e.g. at 24 frames/sec., and in response to the desired field frequency of the resulting video signal, e.g. 60 Hz. A bi-stable multivibrator 30 and AND gates 26 and 28 produce the alternate half film frame rate frequency trigger signals A<SP>1</SP> and B<SP>1</SP> from the perforation sensor signal SP. These signals are applied to sawtooth waveform signal generating circuits 32 and 32<SP>1</SP> which each include an operational amplifier 34, 34<SP>1</SP>, an FET 42, 42<SP>1</SP> and a capacitor 40, 40<SP>1</SP>. At the output terminals 38, 38<SP>1</SP> of these sawtooth generating circuits the signals C and D respectively are produced. These signals C and D are then selectively and alternately combined with each other in response to switching signals E and F derived from the desired field frequency pulses LP (60 Hz) and signals A and B in bi-stable multivibrator 94, and then with a sawtooth waveform J at the field frequency (60 Hz) in circuit 18 to produce the flying spot scanner complex vertical deflection signal R. In accordance with the present invention the slopes of the signals C and D are regulated as a function of the rate of movement of the film frames with respect to the flying spot scanner by means of FETs 44 and 46 which pass the sawtooth waveform signals C and D to a common negative input terminal 47 of an operational amplifier 48, the FETs being respectively rendered conductive by each positive pulse of the trigger signals B<SP>1</SP> and A<SP>1</SP>. A reference signal is applied to terminal 54 of the operational amplifier and the output of this amplifier is inverted 56 and fed via feedback resistors 60 and 62 to the inputs of the operational amplifiers 34 and 34<SP>1</SP>. This gain control circuit establishes the level of the slope control current input signal applied to the inputs 36 and 36<SP>1</SP> of the operational amplifiers 34 and 34<SP>1</SP>, and thus the charging rate of the capacitors 40 and 40<SP>1</SP>. Signal H represents the difference signal accumulated by capacitor 50, i.e. the slope control input signal, and varies with the actual rate of movement of the film. The reference signal fed to operational amplifier 48 is preferably one-half the maximum amplitude of the sawtooth waveform signals C and D. In Fig. 2, an increase in the rate of movement of the film is indicated by pulse 100 and the resulting rise in signal H with consequential increase in the slope of signals C and D.
Patent GB-1441634-A (GB)
Title: Tube holder
IPC: B67C3/24
Filed: 1973-10-15
Abstract: 1441634 Supporting tubes during filling and packaging DOMAIN INDUSTRIES Inc 15 Oct 1973 [16 Oct 1972] 47985/73 Heading B8C [Also in Division B3] A holder for a flexible tube T during filling and closing comprises a rigid upright sleeve 12, means 21 at the bottom of the sleeve to support the tube T, and elongate spring retainer means 16, 17 extending transversely of and within the upper portion of the sleeve and to engage and resiliently bear against the tube to retain the tube against lateral movement. The sleeve is of circular cross-section at the bottom 20.1 and increases in diameter in one lateral direction from bottom to top to become of oblong crosssection at the top to enable the tube to change cross-section when the end T<SP>1</SP> is flattened for closure. The spring means are positioned in slots in the sleeve and may comprise one or a pair of endless coil springs, or rubber or plastics 0-rings or bands, or a pair of bent rods (17<SP>11</SP>, 19<SP>11</SP>, Fig. 9, not shown) urged together by springs. There may be a plurality of holders on a turret movable past filling and closing stations which flatten, roll and clamp the end T<SP>11</SP> of the tube which may be of metal or plastics.
Patent GB-1184273-A (GB)
Title: A Coupling for the Vehicles of Toy and Model Railways
IPC: A63H19/18
Filed: 1968-10-10
Abstract: 1,184,273. Couplings between toy railway vehicles. W. RICHTER and E. RICHTER [trading as ERNST PAUL LEHMANN]. 10 Oct., 1968 [13 Oct., 1967; 17 May, 1968], No. 48140/68. Heading A6S. A coupling for toy railway vehicles having bogie-mounted wheels comprises two coupling members each comprising a stirrup 4 and one of which further comprises a hook 7 pivotally mounted (at 9) for downward deflection out of the plane containing its stirrup and biassed by means of a counterweight 12 for upward engagement in the cooperating stirrup. The hook and stirrup are mounted on a coupling carrier 2, firmly mounted on a bogie 1. As shown in Fig. 3, the counterweight is in the form of a cam 12 which can cooperate with an uncoupling ramp. A compression spring 15 (Fig. 4, not shown) between the carrier and the neck of the cam may supplement the weight of the latter: The stirrup may be provided with buffer rail 5. The coupling may be made of plastics material.
Patent GB-1365938-A (GB)
Title: Low pressure die casting method and apparatus therefor
IPC: B22D18/04
Filed: 1971-10-18
Abstract: 1365938 Pressure die casting machines SOAG MACHINERY Ltd 13 Oct 1972 [18 Oct 1971] 48387/71 Heading B3F A low pressure die casting apparatus having a die 5 mounted over a furnace 9 for molten metal, and a riser tube 11 extending from within the furnace to an orifice 7 leading to the die cavity, is provided with means for introducing an inert gas into said tube 11 near the upper end thereof. The tube 11 is urged upwards by two wedge assemblies 18 so that a cap 15 at the end of the tube 11 is pressed against the orifice 7. An inert gas heavier than air is introduced into the tube 11 through an inlet 19 and the furnace 9 pressurized to force the molten metal up the tube 11 into the die cavity. The inert gas is pushed into the cavity ahead of the metal and flushes out the air contained therein, vents 6 being provided in the mating surfaces of the top and bottom halves of the die. As the metal level in the tube 11 passes a nozzle 21 in the cap 15, a back pressure is produced in the cavity formed between the internal wall of the cap 15 and the outer wall of the nozzle which prevents ingress of molten metal into the inlet 19 and may be used to shut off or reduce the flow of inert gas through the inlet 19. After the metal in the die has solidified, the furnace 9 is vented to permit the excess molten metal in the tube 11 to fall back into the furnace. As the molten metal clears the lower end of the nozzle 21 the back pressure exerted on the inert gas is removed and the flow of said gas restored immediately to prevent ingress of air into the tube 11 on opening the die.
Patent GB-1136296-A (GB)
Title: Protective apparatus for a forced air cooling system
IPC: H02H5/08
Filed: 1966-10-28
Abstract: 1,136,296. Projection lamphouses. TEXAS INSTRUMENTS Inc. Oct.28, 1966 [Dec.6, 1965], No.48394/66. Heading G2J. [Also in Divisions H1 and H2] In a forced air cooling system, e.g. for the lamp in a slide projector, a negative temperature coefficient thermistor TH1 is mounted in the airflow and connected across a power source in series with the coil W1 of a relay. When the air-flow is insufficient, the thermistor heats and reduces its resistance so that the coil W1 is sufficiently energized to operate contacts RYA. These contacts open the circuit of the projector lamp S1 and short circuit the thermistor TH1 to complete a holding circuit for the relay coil W1.
Patent GB-999270-A (GB)
Title: Improvements in and relating to pitch-circle drilling jigs
Inventor: BLUNT CHARLES EDWIN
IPC: B23B47/28
Filed: 1962-12-21
Abstract: 999,270. Drill jig; machine tool details. MIDLAND MACHINE TOOL CO. (BIRMINGHAM) Ltd. Nov. 13, 1963 [Dec. 21, 1962], No. 48403/62. Headings B3B and B3C. A pitch circle drill jig comprises a base 13, pillars 11, 12, a work-holder 14 indexable on the base, a guide bar 10 slidable on the pillars, a drill bush holder 24 slidable on the guide bar, and means for releasably clamping the holder to the bar, the latter being pivotable about pillar 11. Pillar 11 is longer than pillar 12 to allow pivoting of the bar 10, clamps 17, 19 are provided for locking the bar, and a bar stop 21 is clamped to pillar 11 at 22. Bush holder 24 is adjusted along bar 10 by rack-and-pinion means 28, the position being indicated by a vernier 35, 36. A bush 42 is held in holder 24 by a screw 37, and replaceable slip bushes 44 are provided and are held in bush 42 by means 51. The work is held in a chuck carried by a plate 57 indexable into twenty-four positions. The plate is locked in the indexed positions by three devices, each of which comprises a plunger 54, a lever 58 which operates a cam 59 to retract the plunger, and a spring 55 for urging the plunger into the apertures 56 in plate 57.
Patent GB-1214385-A (GB)
Title: Steering column switch for direction indication for vehicles
IPC: B60Q1/42
Filed: 1968-10-14
Abstract: 1,214,385. Direction indicator switches. SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV BAU G.m.b.H. 14 Oct., 1968 [25 Oct., 1967], No. 48565/68. Heading G4Q. [Also in Division H1] In a lever-actuated direction indicator switch mounted on the steering column of an automotive vehicle and adapted to be returned automatically by a reset member on the steering column, a casing cover 12, Fig. 1, mounted on an insulating base-plate 11 is arranged to retain the movable switching members in position on the base-plate 11. Switching member 15 carrying lever 38 in recess 37 is mounted on two integral bearing pins 18, 19 projecting respectively into apertures 13, 14 in the cover 12 and base-plate 11. A switching cam 22 mounted above the member 15 and also retained in position by the cover 12 has bearing pins 23, 24 engaging in recesses 26 in the cover 12 and cam slot 25, Fig. 2, in the member 15. The cam 22 is urged towards reset member 52 on the steering column by tension springs 29. On operation by lever 38 switch member 15 with its integral cam slot 25 moves to one side so that switch cam 22 moves towards the axis of steering column under action of springs 29, 30 as soon as the reset member 52 has moved to one side. On return of the reset member 52 it engages one side of the cam 22 which is thereby tilted to engage one or other of flexible return members 20, 21 integral with the member 15 to return the switch to the neutral position. The flexibility of the return members 20, 21 permits the reset members 52 to return while the lever 38 is restrained. A spring- loaded detent ball 32 in a recess 31 of the switch member 15 engages a fixed detent cam 16 to assist in restoring the switch member 15 to the neutral position. Switch member 15 carries a movable contact 36 yieldingly urged against fixed rivet contacts 45 and held in position by a pair of springs 35, Fig. 4 (not shown). Lever 38 may also pivot on bearings 39 in the switching member 15 for activating a horn or lamp flashing switch. This switch comprises a movable spring arm contact 47 riveted to the cover 12 and forced by the arm 38 into engagement with a fixed contact 51, Fig. 5 (not shown). The contact ends are bent up at 45 degrees so that the faces slide after abutment. The switch arm 38 is rendered retractive by means of a spring-loaded ball 43 mounted at its inner end and engaging a ramp 44.